I was having the same issues when my son took meds. My son was also on Concerta and it helped somewhat. I did notice he became more aggressive when the drug was wearing off so we spoke to his psychiatrist about it. He prescribed Guanfacine, just 2mg, to be taken as soon as he got home from school. Kept him focused a little longer for homework and kept him from having that med crash. Unfortunately, my son pretty soon afterwards refused to take medications so I can’t tell you long-term how well it worked. Now we’re battling trying to get him to take meds again as his home behavior is awful when he doesn’t get his way. My suggestion is you talk to a child psychiatrist as they’re the experts in psych meds. Our pediatrician wasn’t an expert and just prescribed a bunch of meds hoping one would work. Best of luck!